Table 3
Pretest and Posttest Means for Impact Variables of Knowledge, Self-Efficacy, and Attribution
| Variable | Group | n | Pretest Mean (SD) | Posttest Mean (SD) |
| Knowledge questionnaire | Intervention | 38 | 18.6 (±5.1) | 21.1 (±5.4) |
| Control | 33 | 15.7 (±5.8) | 17.8 (±6.3) | |
| Knowledge: | ||||
| Self-regulation | Intervention | 38 | — | 3.3(±1.3) |
| Control | 32 | — | 0.06 (±0.3) | |
| Prevention | Intervention | 38 | — | 2.7 (±1.1) |
| Control | 33 | — | 1.8 (±1.0) | |
| Treatment | Intervention | 38 | — | 2.7 (±1.4) |
| Control | 33 | — | 1.5 (±0.8) | |
| Self-efficacy* | Intervention | 38 | 53.4 (±9.7) | 56.5 (±9.8) |
| Control | 32 | 51.6 (±9.7) | 51.5 (±10.7) | |
| Attribution: | ||||
| Locus (+) | Intervention | 35 | 2.6 (±1.0) | 2.9 (±0.9) |
| Control | 32 | 2.9 (±0.9) | 3.0 (±0.9) | |
| Locus (–) | Intervention | 37 | 3.2 (±1.1) | 3.5 (±0.8) |
| Control | 32 | 3.3 (±0.7) | 3.6 (±0.7) | |
| Locus (Total) | Intervention | 35 | 5.6 (±1.8) | 6.4 (±1.6) |
| Control | 32 | 6.3 (±1.3) | 6.6 (±1.2) | |
| Stability (+) | Intervention | 37 | 4.3 (±1.8) | 4.8 (±1.8) |
| Control | 33 | 4.2 (±1.8) | 4.5 (±1.7) | |
| Stability (-) | Intervention | 36 | 4.8 (±1.7) | 5.0 (±1.7) |
| Control | 32 | 4.6 (±1.8) | 5.3 (±1.7) | |
| Stability (Total) | Intervention | 36 | 9.0 (±2.8) | 9.9 (±2.7) |
| Control | 32 | 8.8 (±2.3) | 5.3 (±1.7) | |
| Attribution classification | Intervention | 37 | 36.1 (±7.1) | 39.5 (±6.4) |
| Control | 33 | 35.3 (±7.9) | 36.5 (±6.7) |
-
↵* Outlier removed.
